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BEST RATED SANTA ROSA, CA GASTROENTEROLOGISTS

3 Best Gastroenterologists in Santa Rosa, CA

Expert-recommended Top 3 Gastroenterologists in Santa Rosa, California. All of our gastroenterologists actually face a rigorous 50-Point Inspection, which includes customer reviews, history, complaints, ratings, satisfaction, trust, cost and general excellence. You deserve only the best!

Frank L. Anderson, MD - Santa Rosa, CA Gastroenterologists - Doctor Portrait Image
Best Gastroenterologists in Santa Rosa CA - Frank L. Anderson, MD video
4+ YEARS ON TBR
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FRANK L. ANDERSON, MD

(4.8 Score)
34 Mark West Springs Road, 2nd Floor,
Santa Rosa, CA 95403 Directions

Since 1981

Specialty:

✓Autoimmune Hepatitis ✓Autoimmune Skin Disease ✓Barrett's Esophagus ✓Cancer Genetics ✓Celiac Disease ✓Chronic Idiopathic Constipation ✓Colitis ✓Colorectal Neoplasia ✓Fabry Disease ✓Familial Adenomatous Polyposis ✓Fecal Impaction ✓Gastroesophageal Reflux Disease ✓Hemochromatosis ✓Hemophilia ✓Hepatic Encephalopathy ✓Huntington's Disease ✓Irritable Bowel Syndrome ✓Liver Disease ✓Portal Hypertension ✓Viral Hepatitis ✓Wilson's Disease

" Dr. Frank L. Anderson received his medical degree from Boston University School of Medicine. He completed his residency at UCLA Medical Center and completed his internship at Deaconess Hospital. He also completed a fellowship in gastroenterology. Dr. Frank L. Anderson has more than 43 years of experience in gastroenterology. He is board-certified in gastroenterology. He provides treatment for inflammatory bowel disease, liver disease, severe constipation, viral hepatitis, and Wilson's disease. He accepts new patients. Dr. Frank L. Anderson is fluent in English.

2026 Highlights: Dr. Frank L. Anderson is affiliated with Sutter Medical Group of the Redwoods."

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License #G54882

Contact:

(707) 541-7900

Mon-Fri: 8am - 5pm
Sat & Sun: Closed

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Joshua P. Beirne, MD - Santa Rosa, CA Gastroenterologists - Doctor Portrait Image
Best Gastroenterologists in Santa Rosa CA - Joshua P. Beirne, MD video
7+ YEARS ON TBR
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JOSHUA P. BEIRNE, MD

(4.8 Score)
500 Doyle Park Drive, Suite 205,
Santa Rosa, CA 95405 Directions

Since 2002

Specialty:

✓Esophageal ✓Enteric Stents ✓Celiac Disease ✓Abdominal Pain ✓Hemorrhoids ✓Colonoscopy ✓Acid Reflux Disease (Gastroesophageal Reflux/GERD) ✓Irritable Bowel Syndrome (IBS) ✓Ulcerative Colitis ✓Constipation ✓Hepatitis C ✓Upper GI Endoscopy ✓Lower GI Endoscopy

" Dr. Joshua P. Beirne is a board-certified Gastroenterology and Internal Medicine physician. He completed his medical degree at the University of Texas Southwestern Medical Center. He completed his residency at the University of California San Francisco School of Medicine, followed by a fellowship at Rhode Island Hospital. He provides expert diagnosis and treatment of all forms of digestive conditions and gastrointestinal diseases.

2026 Highlights: Dr. Joshua P. Beirne is trained in the advanced endoscopy track, which includes ERCP, Spyglass cholangioscopy, and esophageal procedures."

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Top Doctors of 2018 Honoree by Sonoma Magazine
License #A91482

Contact:

(707) 303-8350 (707) 303-8360

Mon-Fri: 8am - 5pm
Sat & Sun: Closed

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Runalia Bahar, MD - Santa Rosa, CA Gastroenterologists - Doctor Portrait Image
Best Gastroenterologists in Santa Rosa CA - Runalia Bahar, MD video
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RUNALIA BAHAR, MD

(4.7 Score)
34 Mark West Springs Road, Floor 2,
Santa Rosa, CA 95403 Directions

Since 2013

Specialty:

✓Gastroenterology ✓Endoscopy ✓Colonoscopy ✓Primary Biliary Cholangitis ✓Familial Adenomatous Polyposis ✓Gastrointestinal Bleeding ✓Duodenitis ✓Hemorrhoids ✓Gastroptosis ✓Esophagitis ✓Diaphragmatic and Hiatal Hernia ✓Gastritis ✓Diarrhea ✓Heartburn ✓GERD ✓Colon polyps

“ 2026 Highlights: Dr. Runalia Bahar is a gastroenterologist in Santa Rosa, California. She specializes in gastroenterology and provides care for digestive health conditions. She completed medical school at the University of Pittsburgh. Dr. Runalia Bahar completed her residency at the University of California, Davis, in Internal Medicine. Her clinical expertise includes Primary Biliary Cholangitis, Familial Adenomatous Polyposis, Gastrointestinal Bleeding, Endoscopy, and Colonoscopy. She is affiliated with Sutter Medical Group of the Redwoods.”

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License #133805

Contact:

(707) 541-7900

Mon-Fri: 8am - 5pm
Sat & Sun: Closed

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FRANK L. ANDERSON, MD REVIEWS

I moved to Santa Rosa a year ago and was being treated for Hep.C already and he worked with me until I finished the series of medication. He was very informative and explained everything in detail. I like that quality in a physician, when they treat you with respect. He now takes care of my issues around allergies/and gastroenterological issues. I would recommend him to a friend. He has also given me my test results in a timely manner. His office staff are all very friendly and efficient.

I recommend Dr Anderson to everyone! He’s available via email for any questions and concerns. He’s helped with insurance issues. He’s great at determining what my body needs and helps me every step of the way through the process.

I have seen Dr Anderson a few times over that last few years, he has been awesome, professional and kind. Dr. Anderson knows his stuff, and I would trust him in any medical situation.

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JOSHUA P. BEIRNE, MD REVIEWS

On the way out I was asked who my primary care physician is, I said I don't have one. But would be happy to have *Dr. Beirne as one.

After the visit, I realized that we never talked about how to deal with my problems other than ordering blood work.

I was very anxious about having someone do an invasive procedure such as looking into my colon !! So I put it off for many years !! Once I arrived to do the procedure I was put to ease by the staff!! Dr Beirne was very professional and it so easy. No pain ! Thanks again for being so professional.

RUNALIA BAHAR, MD REVIEWS

First time going to Dr Bahar, and it was a wonderful experience overall. Great listener and speaks in terms you can understand Glad I transferred my Gastro care to her.

Dr Bahar is a gem. She listens to your concerns, and explains everything well. I had a colonoscopy and it was oddly a good experience! Then I had to have a hemorrhoid banded. I was terrified. It also went very well, and much to my surprise it was painless, just uncomfortable .i highly recommend Dr Bahar.

Excellent doctor! Very attentive to what is said and does not hesitate to order testing to confirm a diagnosis. Very compassionate.

TBR® Inspection Score Report

FRANK L. ANDERSON, MD Total Inspection Points: 116/120
Business Hours: 8
Business Images: 8
Acknowledgments: 10
Insurance : 10
Contact Info: 10
License: 10
Exact Services: 10
Experience: 10
Location Proximity: 10
Review Analysis: 10
Reviews Accuracy of : 10
Video: 10

TBR® Inspection Score Report

JOSHUA P. BEIRNE, MD Total Inspection Points: 115/120
Business Hours: 8
Business Images: 8
Experience: 9
Acknowledgments: 10
Insurance : 10
Contact Info: 10
License: 10
Exact Services: 10
Location Proximity: 10
Review Analysis: 10
Reviews Accuracy of : 10
Video: 10

TBR® Inspection Score Report

RUNALIA BAHAR, MD Total Inspection Points: 113/120
Business Hours: 8
Business Images: 8
Experience: 8
Complete Info: 9
Acknowledgments: 10
Insurance : 10
Contact Info: 10
License: 10
Exact Services: 10
Location Proximity: 10
Reviews Accuracy of : 10
Video: 10